Automobile cleaning apparatus



April 1931.. KS

AUTOMOBILE. CLEANING APPARATUS Filed Oct.

5 Sheets-Sheet l Ru 0 O n Y m e m 7 M14 M N L T I d T A I, 1 Y B April 1931- H. LYDIKSEN AUTOMOBILE CLEANING APPARATUS 5 Sheets-Sheet 2 Filed Oct. so, 1928 .wN W r m NJ III l 1 w NP. M NnQ z 9% J If w q N INVENTOR: HcmryL/d 7666111 BY Y ETORNEY April 21, 1931- H. LYDIKSEN AUTOMOBILE CLEANING APPARATUS Filed Oct. 50, 1928 5 Sheets-Sheet 3 INVENTOR: Hemylydcfisen, QWW

A ORNEY.

April 21', 1931- H. LYDIKsEN 1,801,438

AUTOMOBILE CLEANING APPARATUS BYE TORNEY April-21, 1931. H K N 1,801,438

AUTOMOBILE CLEANING APPARATUS Filed Oct. 30. 1928 5 Sheets-Sheet 5 W H H Mil I TORNEY Patented Apr. 21 1931 UNITED STATES PATENT OFFICE HENRY LYDIKSEN, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO ROWLAND MANU- FACTURING COMPANY, OF BRIDGEPORT, CONNECTICUT, A CORPORATION OF CON- NECTICUT AUTOMOBILE CLEANING APPARATUS Application filed October 30, 1928.

This invention relates to apparatus for cleaning automobiles and other motor vehicles.

An important feature of the present invention is the provision of a single unitary and portable machine for applying to a surface to be cleaned a stream of warm emulsionlike washing liquid to cleanse the same, and a stream of air to the surface which has been washed for drying the same.

Another feature of this invention is the provision in an automobile cleaning apparatus of a mixing chamber in which air, oil and water are admixed, and in which the resulting fluid is heated by the exhaust gases of an internal combustion engine used to operate an air pump for supplying a stream of air to said mixing chamber.

Another feature of the present invention is the provision of an automatic Valve for controlling the passage of air from the pump to the mixing chamber which prevents liquid in the mixing chamber from flowing into the air pump when the air pressure in the pump is reduced by utilization of the air for drying purposes.

Another feature of the present invention is the provision of means for feeding cleaning oil through the water jacket by introducing to an oil reservoir air under pressure from the air pump and so arranging such means that, when the liquid in the mixing chamber is used only for cooling purposes while the air is being used for drying, no appreciable amount of oil is fed to the water in the mixing chamber.

And still a further feature of this invention is the provision of means for preheating the -'water by the exhaust gases of an internal combustion engine before introducing the water to the mizrin chamber where it is further heated, and then still further. heating the aerated emulsion-like washing liquid by passing the same through the water jacketof the engine.

Other features and advantages will hereinafter appear.

In the accompanying drawings, which illustrate one form of the invention, that at present preferred- Serial No. 316,085.

Figure 1 is a side elevation of the machine.

Fig. 2 is a view similar to Fig. 1, with parts broken away to show details of construction of the engine and air pump and the reservoir for the oil.

Fig. 3 is a plan view of the machine, showing the head for the combined engine and pump in section substantially on the line 38 of'Fig. 1.

Fig. 4 is a longitudinal section taken through the manifold on the line H of Fig. 1.

Fig. 5 is a transverse sectional View taken on the line 55 of Fig. 3.

Fig. 6 is a transverse sectional view taken through the manifold, and showing the orifice or port and valve controlling the same through which the compressed air passes from the block to the manifold.

Fig. 7 also shows the manifold in section, and in addition shows the block and head in section to illustrate the path of the explosive gases from the engine head to the exhaust chamber of the manifold.

Fig. 8 is a sectional view taken through th valve mechanism of one of the air compressing cylinders.

The apparatus or machine of the present invention, as shown in the accompanying drawings, is adapted to produce a stream of emulsion-like washing liquid partially heated so as to be slightly warmer than tepid and adapted to issue from a hose 10, the end of which is provided with a nozzle 10a by means of which the stream may be applied to the surface to be cleaned. The fluid is heated, according to the present invention, by being passed through the water jacket of an internal combustion engine and around the exhaust manifold thereof, the same engine being utilized to operate pumping means for forcing air under pressure into the stream of water. A soapy or emulsion-like washing liquid is produced by injecting into the water a relatively small quantity of oil, preferably a mixture of that grade of oil known as furnace oil and a relatively small percentage of oil having a paraflin base.

' In order to produce a driving engine and air compressing device with the utmost economy, the device of the present invention coniprises an engine block 11 having four cylin ders 12, in two of which there are mounted pistons 13 and in the other two of which there are mounted pistons 14. Each of the pistons is provided with a connecting rod 15 carried by a crank shaft 16 journalled in hearings in the block 11 in the usual manner. Except for a head 17 which fits over the top of the block 11 and manifold 18, the engine of eonveir tional design, that shown being a Ford Model T motor. Instead of all. four of the pistons being utilized to develop power, however, only the pistons 13 are so used, and the pistons 14 form the operating parts of an air pump which have the crank shaft 16 in com mom with the pistons 13 and are reciprocated thereby.

Referring to the general structural features of the machine shown, the engine block 11 is secured to a sub-base 19 containing the lubrieating oil reservoir 20 and lower half 21 of the fly wheel casing. At the point where the flanges on the lower half 21 and the upper half 22 of the fly wheel casing are bolted together, there are fastened, by the same bolts, brackets 23 for suppm'ting a fuel supply tank 24 which has a pipe 25 feeding gasoline to the carburetor :26, see Fig. 1.

The sub-base 19 has legs 27 resting on the main base 28 having rear wheels 29 and a dirigible front wheel 30 on which the machine is supported so that it may be drawn from place to place for use if desired. The sub-base 19 merely rests on the main base 28 and is held from shifting thereon by the front leg 27 fitting in a socket 31 and the lower half 21 of the fly wheel casing which its in a depression in the main base. The base 28 has a reservoir 32 for a supply of cleaning oil.

The engine is, as usual, water cooled, and hence has a water acket 33. It is, however, not provided with a radiator as would be the usual construction since, according to this invention, the washing liquid is heated by the engine While the latter is cooled by the washing liquid.

In order to utilize as much of the heat produocd by the operation of the engine as possible, the present invention does not depend solely upon the heat absorbed by the liquid in passing through the water jacket 33 but also makes provision so that the water will. be heated by the exhaust gases of the engine. Under some circumstances, for instance in a torrid climate or when four cylinders are used as explosion chambers as would be the case if a six cylinder engine were employed, suflicient heat might be developed to obviate the need of preheating the water.

However, since some chamber is required in which the cleaning oil and water may be admixed and a. stream of air injected in the water to aerate the liquid, agitated so as to produce an emulsion-like liquid and increase the velocity of the liquid at the cleaning nozzle, the present invention provides the novel exhaust manifold 18 which is so arranged as to have a water jacket 34 for the purposes above specified.

This manifold 1 is preferably provided in the form of a. hollow casting having an upper portion provided with a surface 35 adapted to be tightly drawn against the side of the engine block 11 by screws 3h, see Figs. 1 and 3. Centrally located in the lower part of the manifold is a tube 37 cast integrally with the outer portion. The tubular portion 37 has a closed end 38, see Fig. 4, and is provided with conduits 39, see Fig. 7, which match exhaust outlet ports 40 in the engine block 1.1. As usual, these outlet ports 40 are controlled by valves 4-1 operated by the usual engine cam shaft not shown, one port 40 and one valve 41 being provided for each of the explosion cylinders as shown in dotted lines in Fig. 3. Hence, the exhaust gases pass into the tube 37 in the manifold and along the tube to the open end 42 thereof where they pass into a flanged head 43 having a socket 44 for the reception of the exhaust pipe 45. In passing through the tube 37, the exhaust gases heat the latter and this in turn heats the water in the water jacket For the above stated purposes, the present invention goes a. step further and prcheats the water even before the latter enters the i 'ater jacket and. mixing chamber 34. To do this, water from a suitable source of supply (a tank or the house faucet) is carried to the machine by a flexible hose 46, see Fig. 4, and after passing through suitable fittings 47 enters a pipe 48 which is formed in a coil and supported in the tube 37 in the manifold. The coil of pipe 48 reaches to the closing wall 38 of the tube 37 whereupon it bends inwardly and has a straight portion 49 extending centrally through the tube and out through the head 43, see Fig. 4, where. it is provided with fittings 50 and an outlet orilice 51 entering the water jacket 34. Thus the water is preheated by the exhaust gases passing around and about the coil of pipe 48 from the orifice 51 of the pipe 48, the pre heated water enters the water jacket and mixing chamber 34 there to receive the addition of air and oil and is further heated therein. The heated washing liquid then flows from an open end in the manifold 18 through a head 53 bolted thereon and through pipe connections 54 connecting to the usual water inlet 55 at the side of the engine block 11. This inlet is as usual in communication with the water jacket of the engine and hence the washing liquid is further heated by its contact with the engine block and head. The washing liquid flows out of the water jacket 33 through the usual water out lli) let 56 to Which a head having secured to it the washing hose is connected.

In order to supply to the mixing chamber and water jacket 34 a predetermined quantity of cleaning oil from the reservoir 32, the manifiold 18 or the head 44 thereof (the latter in the form shown) is provided with an orifice 57 opening into a chamber 58 directly beneath the outlet orifice 51 of the coil of pipe 37. The orifice 57 has a connection 59 to an oil free pipe 60 which is provided with suitable fittings 61 including a stop cock 62 and a pipe 63 leading into the oil reservoir 32. The pressure on the surface of the oil in the reservoir 32 is increased, as hereinafter explained, so that there is a normal tendency for the oil to rise in the pipe 60 but it is merely fed to the orifice 57 which is of such size that the oil does not readily flow therethrough. The oil, however, is drawn from the orifice 57 by the suction in the chamber 58 resulting from the stream of water flowing out of the orifice 51 at considerable velocity. Hence the quantity of oil drawn into the water depends in a large measure upon the consumption of the water, that is the amount which flows through the orifice 51.

For the purpose of providing the stream of air which is introduced to the oil-containing water in the water jacket and mixing chamber 34, as referred to above, the two remaining cylinders and their pistons 14 of the engine are utilized to produce the stream of air which is introduced to the washing liquid in the water acket and mixing chamber 34. To accomplish this, there is provided in the head 17 above each of the pistons 14, a valve mechanism controlling inlet duct 64 and outlet duct 65 formed in the head, the former being at the lower level and being shown in dotted lines in Fig. 3, while the latter is above it and is shown in full lines. Each inlet duct 64 has a port 66 communicating with a port 67 in the engine block 11 and these communicate with air conduits 68 integrally cast with the manifold 18, in the form shown, and having an air cleaner 69 at its outer end into which atmospheric air is drawn by the suction of the pumping cylinders 14.

' The outlet duct 65 has two ports 7 O in the head 17 which communicate with two ports 71 in the engine block, which, as is usual in engine blocks of the type shown, merge into a single conduit 72, see Fig. 6,'having a port 73 communicating with a port 74 provided in the mixing chamber and water jacket 34 of the manifold 18. The port 74 is provided with a valve 75 which, as will be further explained below, permits air under pressure to enter themixing chamber 34, but prevents water from flowing into the conduit 72 and air outlet duct 65. The outlet duct is also provided with a by-pass 76, see Fig. 5, located in the head 17 and communicating with a. pipe'7 7 connected toa valve 78 which is connected by suitable fittings 79 to. an air hose 80. The latter is provided with a nozzle, not shown, by which the stream of air from the pipe 80 may be directed to the surface which has been cleaned to dry the same.

The valve mechanism for controlling the passage of air to and from the cylinders of the pistons 14 throughthe inlet duct 64 and outlet duct 65 respectively, is shown in detail in Fig. 8. It comprises an inlet valve 81 which is annular in shape and normally forced by springs 82 upwardly against a seat 83. The springs '82 are supported by a flange 84 of a sleeve 85 fitting in a boredout portion of thehead 17 and adapted to be secured in place by a bolt 86. I

The outlet valve 87 is also annular in form and is pressed by a coil spring 88 downwardly against a seat 89 in the head of the sleeve 85 so as to close air passages 90 therein. The spring 88 is located in a pocket 91 in the engine head 17 and surrounds the bolt .86 and a boss 92 in the head of the sleeve.

When assembling the valve mechanism, the springs 82 are placed in recesses 93 in the flange 84 of the sleeve 85; then the valve annulus 83 is slid over the sleeve 85 until it rests upon the springs; and then the valve annulus 87 is placed on its seat 89 over the air passages 90 whereupon the spring 88 .is placed over the boss 92. After the parts are thus assembled, the sleeve 85 is slid into the bored-out portion of the head 17 and the bolt 86 is put in place and tightened.

Referring to the operation of the valve mechanism, when a piston 14 is pulled down by the rotation of the crank shaft 16, air is drawn through the air cleaner 69, conduit 68 and ports 66 and 67 into the air duct 64; then, due to the partial vacuum formed in the cylinder, the air in the air duct causes the inlet valve 81 to move away from its seat 83 and permit the air to rush by the valve 81 and fill the cylinder. At the'end of the down-stroke of the piston, the springs 82 cause the valve 81 to move against its seat 83, and thus cut ofi communication be tween the cylinder and the inlet duct 64. As the piston rises, the air trapped therein is compressed, and when the air pressure he comes greater than the pressure of the spring 88, the valve 87 lifts away from its seat 89 and permits the air topass through the passages 90 into the outlet duct 65. From there the air under pressure is forced through duct 65 to ports 73 and 74, the latter of which is controlled by the valve 75.

The valve 75 has a seat 94 against which it is forced by a spring 95 surrounding its stem 96 and abutting against the end of a sleeve 97 threaded in the casing of the manifold 18, and through which the valve stem passes. The sleeve 97 and itsexterior end is provided with a nut-like head 98 by means of which it may be rotated to move its interior end to and fro to increase or decrease the tension of the spring 95, and it is locked in adjusted position by a lock nut 99.

When the pressure of the air in the outlet duct 65 reaches a predetern'iined point, depending upon the adjustment of the spring controlling sleeve 97, the valve 7 5 is forced to open against the tension of the spring 95 and a stream of air rushes into the mixing chamber and water jacket In entering the latter, the stream of air agitates the water and oil solution contained therein so as to thoroughly admix the same. It also breaks up the Water and produces an aerated emulsionlike washing liquid. In addition to this, the air stream entering the mixing chamber 34 adds its pressure to that of the water and hence increases the velocity of the washing liquid as it leaves the nozzle 10a and impinges against the surface to be cleaned.

All the passages for the washing solution from the mixing chamber to the mouth of the nozzle 10a are such that at no time can the fluid pressure in the mixing chamber build up sufficiently to prevent water entering the mixing chamber through the ori fice 51.

After the surface to be cleaned has been washed by the stream of warm emulsionlike washing liquid applied through the nozzle 10a, the latter may be placed on the floor and the air hose 80 may be taken 11 to dry the surface. Normally, the valve 78 is closed so that the air under pressure may enter the mixing chamber 34 when washing. Hence, when desiring to use the air for drying, the operator opens the valve 78 and this permits passage of the air from the pumping cylinders through the bypass 76 to the valve and thence through the hose 80 to its nozzle. The opening of the valve 78 permits rapid escape of air from the pumping cylinders, and hence air pressure at the port 7 4 leading to the water jacket and mixing chamber 34 is reduced to such an extent that it is not sufficiently great to move the valve 75 from its seat 94, the tension of the spring 85 being so adj ust-ed as to prevent it from moving under these conditions. Being unable to move from its seat, the valve 75 is held by the spring 85 and the added pressure of the water in the water jacket 34 against opening, so that none of the water will flow through the port 74 into the air outlet duct 65.

The provision of this automatic valve permite the use of air for drying while still allowing the use of water for cooling the engine by the manipulation of the single manually operable valve 78, for, while the air hose 80 is being used, water is flowing through the mixing chamber 34 and water jacket 33 of the engine and escaping through the hose 10 to cool the engine.

It was remarked above that cleaning oil was forced upwardly through the pipe 60 to the discharge orifice 57 by air pressure on the surface of the oil in the reservoir 32. This is accomplished by providing a pipe 100, see Figs. 1 and 5, which at its lower end is provided with a stop cock 101 connected by a pipe 102 to the reservoir and which at its upper end is in communication with the bypass 76 leading from the outlet duct to the hand valve 78. Air forced through the pipe 100, stop cock 101 and pipe 102 to the surface of the oil in the reservoir 32 and thus causes the oil to rise in the pipe (30 to the discharge orifice 57. Normally, the air pressure in the reservoir 32 is such as to cause a predetern'iined flow of oil through the pipe to the outlet orifice However, when the hand valve 78 is opened when the stream of air is used for drying, the air pressure in the outlet duct is reduced to such an extent that the pressure of the air on the surface of the oil in the reservoir 32 is insufiicient to cause the oil, or any substantial amount of it, (according to the speed at which the engine is run) from rising in the pipe 60 to the orifice 57. Should it be desired to increase the speed of the engine to obtain a more forceful air stream for drying, the stop cock 101 may be shut off to prevent air from being forced into the reservoir 32. Thus, it will be seen that while the machine is being used for drying, cleaning oil is not injected in any substantial quantities to the water in the mixing chamber an d water jacket 34 and thus a substantial saving is effected.

In the operation of the engine, there is, as is well known, always a small quantity of lubricating oil on the cylinder walls and pistons both for lubrication and obturation. This is true of the air pumping cylinders and their pistons 14 as well as the explosion cylinders and their )istons 13. To prevent this lubricating oil rom being blown out on the cleaned surface through the air drying hose 80, the path of the air it leaves the engine head is made tortuous and this is done by causing the pipe 78 to be at right angles to the pipe 77 leading from the by-pass 76. Thus, any particles of oil which may be carried by the air stream impinge against the end of the valve or the pipe 77 and are temporarily stopped so as to give then an opportunity to fall by gravity to the lower part of the pipe. At this point in the pipe 79, there is provided a trap 103 to catch the oil or moisture condensed from the air by its compression. The trap has an opening closed by a plug 104: which may be removed to permit the discharge of any accumulation of oil or water whichmav form therein. if

Variations and modifications may be made within the scope of this invention and portions of the improvements may be used without others. i

1 Having thus described the invention, what is claimed as new and for which it is desired to obtain Letters-Patent, is

1. An automobile cleaning apparatus comprising an internal combustion engine having a water jacket; an air pump operated by said engine; a mixing chamber in communication with said water jacket of the engine; means for supplying water to said mixing chamber and water jacket, said water being heated by operationof the engine; means in communication with said water jacket and mixing chamber for applying a stream of Washing liquid to the surface to be cleaned; and means for conveying air under pressure from said pump to the mixing chamber to aerate the liquid therein.

2. An automobile cleaning apparatus comprising an internal combustion engine having a water jacket; an'air pump operated by said engine; a mixing chamber in communication with saidwater jacket of the engine; means for supplying water to said mixing chamber and Water jacket, said water being heated by operation of the engine; means in communication with said water acket and mixing chamber for applying a stream of washing liquid to the surface to be cleaned; means for conveying air under pressure from said pump to the mixing chamber to aerate the liquid therein; an auxiliary air-outlet; and a hose connected thereto for applying air impelled by said pump to the surface washed to dry. the same after the cleaning operation.

3. An automobile cleaning apparatus comprising an internal combustion engine having a water acket;-an air pump operated by said engine; a mixing chamber in communication with said water jacket of the engine; means for supplying water to said mixing chamber and water jacket, said water being heated by operation of the engine; means in communication with said water jacket and mixing chamber for applying a stream of washing liquid to the surface to be cleaned; means for conveying air under pressure from said pump to the mixing chamber to aerate the liquid therein; an auxiliary air-outlet; a hose connected thereto for applying air impelled by said pump to the surface washed todrythe same after the cleaning operation; a manually operable valve beween said air hose and the pump which when openedpermits air under pressure to pass through the air hose; and an automatic valve to prevent water in the mix ing chamber from flowing into the pump when the air'pressure in the latter is reduced by the opening of the manually operable valve.

4. An automobile cleaning apparatus comprising an internal combustion engine having a waterjacket; an air pump operated by said engine; a mixing chamber in communication with said water jacket of the engine; means for supplying water to said mixing chamber and Water jacket, said water being heated by ope-ration of the engine; means in communication with said water jacket and mixing chamber for applying a stream of washing liquid to the surface to be cleaned; means for conveying air under pressure from said pump to the mixing chamber to aerate the liquid therein; and an automatic valve to prevent washing liquid in the mixing chamber from flowing into the pump when the air pressure in the latter is reduce 5. An automobile cl aning apparatus comprising an internal combustion engine having an exhaust manifold provided with a water jacket; a coil of pipe mounted in the exhaust manifold in the path of the exhaust gases and having inlet and outlet orifices; means for supplying water to said pipe inlet; means for connecting the pipe outlet to the water jacket of the manifold so that water heated in the pipe may be further heated in the said water jacket; means in communication with the water jacket for conveying the heated water to a remote point for use; and means for supplying a predetermined quantity of oil to the water in the manifold water jacket to there admix with the preheated water.

6. An automobile cleaning apparatus comprising an internal combustion engine having an exhaust manifold provided with a water jacket; a coil of pipe mounted in the exhaust manifold in the path of the exhaust gases and having inlet and outlet orifices; means for supplying unheated water to said pipe inlet; means for connecting the pipe outlet to the water jacket of the manifold so that water heated in the pipe may be further heated in the said water jacket; means in communication with the water acket for conveying the heated water to a surface to be cleaned; and means for supplying a stream of air under pressure to the water in the water jacket of the manifold.

7. An automobile cleaning apparatus comprising an internal combustion engine hav ing an exhaust manifold provided with a water jacket; a coil of pipe mounted in the exhaust manifold in the path of the exhaust gases and having inlet and outlet orifices; means for supplying water to said pipe in let; means for connecting the pipe outlet to the water jacket of the manifold so that water heated in the pipe may be further heated in the said water jacket; means in communication with the water jacket for conveying the heated water to a remote point for use; means for supplying a predetermined quantity of oil to the water in themanifold water jacket to there admix with the preheated water; and means for supplying a stream of air under pressure to the water in the water jacket of the manifold, the velocity o said air stream being adaptedv to agitate the water and oil admixture to form an aerated emulsion-like liquid.

8. An automobile cleaning apparatus comprising an internal combustion engine having an exhaust manifold provided with a water jacket: means for supplying water to said water jacket to be heated therein by the exhaust gases passing through the manifold; means in communication with said water jacket for conveying the heated water to a remote point for use; and means for continuously supplying a predetermined quantity of oil to the water in the manifold water jacket to there admix with the water.

9. An automobile cleaning apparatus comprising an internal combustion engine having an exhaust manifold provided with a water jacket; means for supplying water to said water jacket to be heated therein by the exhaust gases passing through the manifold; means in communication with said water jacket for conveying the heated water to a remote point for use; and means for supplying a stream of air under pressure to the water in the water jacket of the manifold.

10. An automobile cleaning apparatus comprising an internal combustion engine having an exhaust manifold provided with a water jacket; means for supplying water to said water jacket to be heated. therein by the exhaust gases passing through the manifold; means in communication with said water jacket for conveying the heated water to a remote point for use; and an air pump operated by the engine for supplying a stream of air under pressure to the water in the water jacket of the manifold.

11. An automobile cleaning apparatus comprising an internal combustion engine having an exhaust manifold provided with a water jacket; means for supplying water to said water jacket to be heated therein by the exhaust gases passing though the manifold; means in communication with said water jacket for conveying the heated water to a remote point for use; an air pump operated by the engine; means for supplying a stream of air under pressure from the air pump to the water in the water jacket of the manifold; and an automatic valve for permitting the passage of air under predetermined pressure though said air supply means to the water in the water jacket from said pump.

12. An automobile cleaning apparatus comprising an internal combustion engine having an exhaust manifold provided with a water jacket; means for supplying water to said Water jacket to be heated therein by the exhaust gases passing through the manifold; means in communication with said water jacket for conveying the heated water to a remote point for use; and a Venturi tube for supplying a predetermined quantity of oil to the water in the manifold water jacket to there admix with the water.

13. An automobile cleaning apparatus comprising an internal combustion engine having an exhaust manifold provided with a water jacket; means for supplying water to said water jacket to be heated therein by the exhaust gases passing through the manifold; means in communication with said water jacket for conveying the heated water to a remote point for use; an oil reservoir; an air pump operated by the engine; means for supplying air under pressure from said air pump to the oil reservoir; an oil conveying pipe connected to the oil reservoir; and a Venturi tube located in the water jacket and connected to the oil conveying pipe adapted to supply a predetermined quantity of oil to the water in the manifold Water jacket to there admix with the water 14. An automobile cleaning apparatus comprising an internal combustion engine having an exhaust manifold provided with a water jacket; means for supplying water to said water jacket to be heated therein bythe exhaust gases passing through the manifold; means in communication with said Water jacket for conveying the heated water to a' remote point for use; means for supplying a predetermined quantity of oil to the water in the manifold Water jacket to there admix with the water; and means for supplying a stream of air under pressure to the Water in the water acket of themanifold, the velocity of said air stream being adapted to agitate the water and oil admixture to form a aerated emulsion-like liquid.

15. A complete portable automobile cleaning apparatus comprising an internal com bustion engine having a water jacket; a fuel supply tank therefor; a cleaning oil reservoir; an air pump incorporated in the internal combustion engine and havingv a crank shaft in common with the engine; means ineluding a flexible connection for supplying water to said Water jacket to be heated therein by the heat developed by the operation of the engine means connecting the air pump to the water jacket to cause air under pressure to admix and aerate the liquid therein; means for conveying the cleaning oil from its reser voir to the water jacket; means connected with the water jacket and including a flexible connection for applying a stream of aerated emulsion-like cleaning fluid to a surface to be cleaned; said engine, fuel supply tank and cleaning oil reservoir and air pump being secured together in one assemblage, and having means on which the assemblage may be pushed or drawn from place to place for use. 16. A complete portable automobile washing and drying apparatus comprising an internal combustion engine having a Water jacket; a fuel supply tank therefor; a clean mg oil reservoir; an air pump incorporated in the internal combustion engine and having a crank shaft in common with the engine; means including a flexible connection for supplying water to said water jacket to be heated therein by the heat developed by the operation of the engine; means connecting the air pump to the water jacket to cause air under pressure to admix and aerate the liquid therein; means for conveying the cleaning oil from its reservoir to the water jacket; means connected with the water jacket and including a flexible connection for applying a stream of aerated emulsion-like washing fluid to a surface to be washed; said engine, fuel supply tank and cleaning oil reservoir and air pump being secured together in one assemblage, and having means on which the assemblage may be pushed or drawn from place to place for use; and means connected directly to the air pump and including a flexible connection for applying a stream of air under pressure to the surface which has been washed to dry the same.

17. An automobile cleaning apparatus comprising an internal combustion engine having an exhaust manifold provided with a water jacket; means for supplying a liquid to said water jacket to be heated therein by the exhaust gases passing through the manifold; means in communication with the water jacket for conveying the heated water to a remote point for use; and means for supplying a stream of gas under pressure to the liquid in the water jacket in the manifold.

18. An automobile cleaning apparatus comprising an internal combustion engine having an exhaust manifold provided with a water jacket; means for supplying a liquid to said water jacket to be heated therein by the exhaust gases passing through the manifold; means in communication with the water jacket for conveying the heated water to a remote point for use; means for supplying a stream of gas under pressure to the liquid in the water jacket in the manifold; and means for supplying a predetermined quantity of chemical other than water to the liquid in the manifold water jacket to their admix with the preheated water and gas.

Signed at Bridgeport, in the County of Fairfield, and State of Connecticut, this 24th day of October, 1928.

HENRY LYDIKSEN. 

